I starting vomiting and had diarhhria 2 days ago from something I ate. Yesterday I had no appitite, a slight fever and had diarhhia all day, Today i felt better, no fever and I had a bagel for breakfast and felt OK with some diarhhria in the morning. For lunch I had a banana, toast, and applesuace. For the past 4 hrs my stomach has been rumbling and is bloated, I haven't gone to the bathroom in 5 or so hours so not sure about the diahhrea and am very gassy. Is this the normal course of events for a stomach virus and when should I start to become concerned. Thank you.